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CarCareTruth

Calcium Alkaryl Sulphonate

  • Corrosion inhibitors
  • CAS 75975-85-8
  • IUPAC: Benzene, polypropene derivatives, sulfonated, calcium salts

Calcium Alkaryl Sulphonate (CAS 75975-85-8) appears in 1 of the 2,179 car-care products CarCareTruth tracks (as of August 2026).

Not on the CA Prop 65 list (checked against CAS 75975-85-8, not found in the OEHHA list). The finished-product SDS (Mopar 8/9-Speed Fluid, version 6.10, issued 2024-06-21) classifies the mixture overall as 'Not Applicable' under GHS/OSHA HazCom at this additive's disclosed 0.1-0.9% concentration.

Calcium alkaryl sulphonate (CAS 75975-85-8) is an overbased detergent/dispersant additive drawn from the same alkylbenzene sulfonate family used broadly across engine oil and transmission fluid formulations. Its high alkaline reserve neutralizes acidic oxidation byproducts that form as the fluid ages, and its dispersant action keeps oxidation sludge and varnish precursors suspended in the fluid rather than depositing on valve-body and clutch-pack surfaces, protecting the transmission's internal metal components from corrosion.

The finished-product SDS classifies the overall mixture as not meeting the OSHA Hazard Communication Standard's definition of a hazardous chemical, with no GHS signal word or hazard statement assigned at the mixture level. CAS 75975-85-8 does not appear on California's Proposition 65 list.

Health & environment profile

VOC
no
Prop 65 listed
no
Asthmagen
no
EPA Safer Choice
no
Aquatic toxicity
no
Biodegradable
no
Bioaccumulative
no
Persistent
no
Ozone depleting
no
Microplastic
no
PFAS
no
Purpose: Overbased calcium sulfonate detergent/dispersant additive in automatic transmission fluid, present at 0.1-0.9% by weight per SDS §3. Neutralizes acidic combustion and oxidation byproducts and keeps oxidation sludge in suspension, reducing metal corrosion in the transmission's fluid circuit.

Common questions about Calcium Alkaryl Sulphonate

What is Calcium Alkaryl Sulphonate used for in car care?
Overbased calcium sulfonate detergent/dispersant additive in automatic transmission fluid, present at 0.1-0.9% by weight per SDS §3. Neutralizes acidic combustion and oxidation byproducts and keeps oxidation sludge in suspension, reducing metal corrosion in the transmission's fluid circuit.
Is Calcium Alkaryl Sulphonate a VOC?
No. Calcium Alkaryl Sulphonate is not classified as a volatile organic compound (VOC).
Is Calcium Alkaryl Sulphonate on California's Proposition 65 list?
No. Calcium Alkaryl Sulphonate is not on California's Proposition 65 list.

1 product contain this

Related

Health and environment notes translate the manufacturer Safety Data Sheet, the GHS classification, and authoritative regulatory listings (California Prop 65, EPA). Not medical advice. They describe the ingredient itself; whether a hazard applies to a finished product depends on its concentration and how it's used.